I noticed the berries on the ivy and the birds eating them. I'm going to make another round with my machete chopping vines so hopefully they die. Some of the vines are 1 to 2 inches in diameter. It got out of control way before I bought the house. It's a house in the middle of 5 acres of woods so who knows how old this stuff is.
If you cut them in growing season brush on glyphosphate/roundup ( > 40%) on the stump full strength to kill roots